body {
  background-color: #000;
  color: #969697;
}

.title-en{
  display: block;
  position: absolute;
  top: 70px;
  left: 42px;
  font-size: 48px;
  transform: rotate(90deg);
  transform-origin: 0 100%;
}

.title-cn{
  display: block;
  position: absolute;
  top: 135px;
  left: 110px;
  font-size: 16px;
  width: 10px;
}

/* header */
.header-m {
  display: none;
}

.header {
  width: 100%;
  height: 57px;
  position: fixed;
  top: 0px;
  left: 0;
  z-index: 999;
  display: block;
}

.header .logo {
  float: left;
  margin-top: 22px;
  margin-left: 42px;
}

.header .nav-list {
  margin-top: 22px;
  float: right;
}

.header .nav-item {
  float: left;
  position: relative;
  margin-left: 35px;
}

.header .nav-item span {
  display: block;
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background-color: #fff;
  position: absolute;
  bottom: -10px;
  left: 50%;
  display: none;
}

.header .nav-item.active a {
  color: #fff;
}

.header .nav-item.active span {
  display: block;
}

.header .nav-item:hover span {
  display: block;
}

.header .search {
  margin-right: 35px;
  margin-left: 110px;
}

.header .search img {
  width: 20px;
  height: 20px;
}

@media (max-width: 1024px) {
  .header {
    display: none;
  }

  .header-m {
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    height: 55px;
    width: 100%;
    z-index: 99;
  }

  .header-m .logo{
      float: left;
      margin-left: 20px;
      margin-top: 20px;
  }

  .header-m .open-btn{
      float: right;
      margin-top: 20px;
      margin-right: 20px;
  }

  .header-m .open-btn .line{
    display: block;
    width: 20px;
    height: 1.5px;
    background-color: #fff;
    margin-top: 6px;
    transition: .5s;
  }

  .header-m .open-btn .line.one{
      margin-top: 0px;
  }

  .header-m .open-btn .line.one.active{
      transform: rotate(45deg) translateX(5px);
  }

  .header-m .open-btn .line.three.active{
    transform: rotate(-45deg) translateX(5px) ;
}

  .header-m .open-btn .line.two.active{
      display: none;
  }

  .header-m .list{
      display: none;
      position: absolute;
      left: 0;
      top: 0;
      width: 100%;
      background-color: #000;
      z-index: -1;
  }

  .header-m .list .item{
      height: 57px;
  }

  .header-m .list .item a{
      display: block;
      width: 100%;
      text-align: center;
      line-height: 57px;
      color: #fff;
  }


}
